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P0120 Diagnostic Trouble Code Discussion for January 2006

Throttle Position Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0120
Help Request Posted
1997 Toyota Tacoma DLX 3.4L Hesitation, Surge, Cuts out, Misfire VIN: 4TAWN72N9V
P0120: TP Sensor or Switch 'A' Circuit Malfunction. The truck cuts out while cruising at very light throttle about 25-35mph. Never on acceleration. It feels like one misfire or sometimes like someone turned the truck off briefly. The Cam and Crank sensors scope perfectly and the crank bolt is tight. I personall...
January 14, 2006
2003 Hummer H2 6.0L MIL Lamp on VIN: 5GRGN23U73
P0120: TP Sensor 1 Signal Performance. Hi Hummer Fans: This vehicle came in with intermittent mil light on, but off when it reached the shop. When mil light would be on, vehicle would go into reduced engine power mode and illumniate appropiate lamp. Vehicle would only run about 1500 rpms and limp a...
January 17, 2006